Update.

test/pexpect/properties.wren

@@ -0,0 +1,16 @@
+// retoor <retoor@molodetz.nl>
+
+import "pexpect" for Spawn, Pexpect
+
+var child = Spawn.new("echo test")
+System.print(child.pid > 0) // expect: true
+System.print(child.timeout) // expect: 30
+child.timeout = 5
+System.print(child.timeout) // expect: 5
+System.print(child.maxread) // expect: 2000
+System.print(child.searchwindowsize) // expect: 0
+
+child.expect(["test"])
+child.wait()
+System.print(child.exitstatus == 0) // expect: true
+child.close()